Slide for tool holders



April 1940- M. J. SCHLITTERS 2,195,841

SLIDE FOR TOOL HOLDERS Filed Aug. 28, 1937 4 Sheets-Sheet 1 MEHAEL JEEHL/TTE BY 6 Y ATTORNEY.

April 2, 1940.

SLIDE FOR TOOL HOLDERS Filed Aug. 28, 193? 4 Sheets-Sheet 2 v INVENTOR. Max-1A5 LZECLHZ/TTEHS ATTORNEY.

M. J. SCHLITTERSY ,841

April 2, 1940. M. J. SCHLITTERS 2,195,841

SLIDE FOR TOOL HOLDERS Filed Aug. 28, 1937 4 Sheets-Sheet 3' IN 'ENTOR. MEHAE J @j IJLJTTEQE A TTORNE'Y.

' April 2, 1940.

M. J. SCHLITTERS 2,195,841

0R TOOL HOLDERS Filed Aug. 28, 1937 4 Sheets-Sheet.4

i MJQ I N VE N TOR. MEHAEL JSCHL/TTEHS' BY ATTORNEY.

Patented Apr. 2, 1940 UNITED STATES PAT ENT OFFICE SLIDE FOR TOOL HOLDERS Michael JQSchlitters, Detroit, Mich. Application August 28, 1937', Serial No. 161,458

, 4 Claims.

My invention relates to metal forming and cutting machines Where the cutting and forming tools are carried on a slide, andthe'object of my improvements is a slide accurately and durably adjusted to place, that will not yield to the forces incident to the operation of the machine, that has broad bearing surfaces-that will resist wear and not be liable to the access of chips or grit, andthat may be readily and firmly readjusted when necessary.

I secure this object in the device shown in the accompanying drawings, in which:

Fig. l is a plan view of an apparatus embodying my invention; 7 15 Fig. 2 is a section on the line 22 Fig. 1;

Fig. 2a is a front elevation looking from the left of Fig. 1, partly broken awayand the left hand gib being shown in section on the line 2a,2a, Fig. 3;

20 Fig. 3 is a side elevation of one of the ad- Fig. 8 is a detail elevation showing the fixture used in adjusting the tool'holder laterally on I the slide;

Fig. 9 is a side elevation of a bolt used in securing the slide-way in position;

.Fig. 10 is a sectional elevation showing a modified construction embodying my invention;

Fig. 11 is an end elevation showing a second 40 modified form.

I is a slide-way having downwardly and outwardly slanting sides iaIa and the longitudinal grooves iii-lb at its bottom edges and beneath the sides Ia-Ia (Fig. 2a and Fig. 7).

The upper surface of the slide I is hollowed out at Io'and its edges shaped to receive a cover plate 2, which hides the bolt holes and presents a smooth plane bearing surface. The cover plate 2 has its side edges formed to fit the edges 50 of the hollow ic and it is secured in position by dowel pins 2a (Figs. 2 and The top of the slide-way I extendshorizontally inward from its side edges for a short distance and then vertically downward in the side 55 walls of the hollowed out portion Ic. The lower (Q1. 3083) t v edge portions of the cover plate 2 are shaped to fit against the horizontal and vertical surfaces thus formed and the extreme edges of the cover plate 2 extend vertically to provide a longitudinal bearing surface that is of great ad 5 vantage to the device. v 3, see Figs. 2c and 10, indicates the lag bolts by which the slide-way I is secured to a stathe fixture it, see Figs. 1, 2a and 8. The slide l5 5 is formedwith surfaces 5a adapted to engage upon the surface ia, and a horizontal surface 52) just above the cover plate 2 and with vertical portions adapted to engage the vertical side portions ZI. Said slide extends downward at its sides and turns inward below the slide-way I and under and spaced from the grooves lb, presenting the surfaces 50, laterally parallel to the bottoms of said grooves and longitudinally slanting upward toward the rear as shown in Fig. 2. a

'I-? are gibs, orcotters, fitting between the surfaces 50 and bottoms of the grooves lb. Ia indicates the down turned head of the gib I, having the elongated hole lb therethrough. 8 indicates screw-threaded bolts xtendingthrough the holes lb and engaging in bores 70 in the slide 5. There isa nut upon the bolt 8 on each side of the head Ia which may be used to adjust the position of the gib 1.

Sometimes the portion of the bed of the machine to which it is desired to secure the slide- Way I is divided as shown at 4a4a, Fig. 10. In such case the slide-way I is also divided and secured by lag bolts 3 to the divided portions ia-ta of the bed as shown in Fig. 10. The gib im-Ia: may then be inserted between the machine bed and the bottoms of the grooves lb.

In some cases the two surfaces to are not parallel, in such case the groove lb, will have 45 to be cut in a corresponding angle as indicated at Ibx, Fig. 11.

Tool-carrying slides have been difiicult to adjust and hold in position, requiring skilled and expert attendants. They have often caused much loss of time because of looseness and misalignment, and have worn out quickly because of limited wearing surface. They have been difficult to repair, the repairing often costing half as much as a new slide.

The above described construction is essentially an inverted dovetail, held stationary while the slide rides upon it and presents practically double the wearing surfaces of previous construtions and the wedges, gibs or cotters 7 permit of convenient and accurate adjustment throughout the bearing surfaces. In case of wear beyond the range of adjustment, shims may be used in connection with thegibs. No chips or grit can get between the bearing surfaces and use wears the surfaces toa perfect fit.

I claim:

1. In a metal forming and cutting machine, a slide-way having a flat top and sides slanting outwardly and downwardly, anchor bolts extending through said top, a cover adjusted to said top, a tool-carrying slide fitted to said way to engage said top and against said sides, and wedge-like gibs, extending substantially the length of said sides and adapted to take up lost motion between said sides and said slide.

2. In a metal forming and cutting machine, a slide-way adapted to be removably secured in position, having a fiat top and sides slanting downwardly and outwardly therefrom, said slideway being hollowed out intermediate the side edges at its top, anchor bolts passing through the upper surface of said slide-way in said hollowed out portion, and a plate fitting into said hollowed out portion forming a cover closing the same, the outer surface of said plate and said sides constituting slide surfaces, a tool-carrying slide fitted to said way to engage over said top and against said sides, and means for taking up lost motion between said sides and said slide.

3. In a tool support for metal forming and cutting machines, a slide-way having a flat top, a flat bottom and sides slanting outwardly and downwardly, said slide-way being adapted to receive anchor bolt means passing through the fiat top and bottom of the slide-way to clamp the bottom firmly upon a machine, a cover adjusted to said top, a tool slide fitted to said slide-way to slide over said slanting sides, said tool slide having underhanging lower portions for passing under the outer edges of the slide-way in spaced relation thereunder, and wedge-like members disposed in the spaces between the under-hanging portions of the tool slide and the slide-way to take up lost motion therebetween.

4. A tool support for metal forming and cutting machines comprising the combination set forth in claim number 3, and having adjustable means for securing said wedge-like members rigidly in predetermined adjusted positions relative to the tool slide for adjustably taking up lost motion between the tool slide and the slide-way.

MICHAEL J. SCI-ILI'I'IERS. 

